In the house I caught several individuals of some arthropod. Nests could not be found, but I was already strained by the fact of the appearance of such infection. I thought it was something like a bed bug, but it doesn’t fit in size (~ 0.8 mm in length or so). To the naked eye is almost impossible to see. Shot with a microscope on the setup table for optics (to understand the scale) and a plain white sheet of paper. Help me understand - what the fuck is there and is there any point in worrying? Thank!